Wpływ rekultywacji na wyniki zalesienia zdegradowanych gleb w Nadleśnictwie Chocianów

The aim of the experiment was to compare the rehabilitating effect of three factors that may improve the degraded and very poor soils formed from loose sands: dolomite liming, use of a multi−component fertilizer with delayed action (Silvamix W) and temporary introduction of an admixture Alnus incana into the Pinus sylvestris plantation. The results of the factorial experiment after 9 years indicate that the soils on which the experiment was established cannot be afforested without prior rehabilitation treatments. The activity of dolomite was most effective while of Silvamix − weaker. Alder survived in the plantation composition only when used in combination with dolomite fertilization, then its rehabilitating effect was apparent. Rehabilitation relying on the use of dolomite at a rate of 2 t/ha in combination with a 50% admixture of alder in the pine plantation is recommended to be used in practice.